Pci

Records

```
class pio_lock
```

Functions

```
uint32_t PciBdfRawAddr (uint8_t bus, uint8_t dev, uint8_t func, uint8_t off)
```
Returns the BDF address without the bottom two bits masked off.

Defined at line 15 of file ../../zircon/kernel/lib/kpci/include/lib/pci/pio.h
```
uint32_t PciBdfAddr (uint8_t bus, uint8_t dev, uint8_t func, uint8_t off)
```
Return BDF address with bottom two bits masked off.

Defined at line 23 of file ../../zircon/kernel/lib/kpci/include/lib/pci/pio.h
```
zx_status_t PioCfgRead (uint32_t addr, uint32_t * val, size_t width)
```
|addr| is expected to NOT have the bottom to bits masked off

Defined at line 34 of file ../../zircon/kernel/lib/kpci/pio.cc

zx_status_t PioCfgRead (uint8_t bus, uint8_t dev, uint8_t func, uint8_t offset, uint32_t * val, size_t width)

Defined at line 51 of file ../../zircon/kernel/lib/kpci/pio.cc

```
zx_status_t PioCfgWrite (uint32_t addr, uint32_t val, size_t width)
```
|addr| is expected to NOT have the bottom to bits masked off

Defined at line 56 of file ../../zircon/kernel/lib/kpci/pio.cc

zx_status_t PioCfgWrite (uint8_t bus, uint8_t dev, uint8_t func, uint8_t offset, uint32_t val, size_t width)

Defined at line 77 of file ../../zircon/kernel/lib/kpci/pio.cc